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ANALYSIS OF THE DESIGN PROCESS OF GREEN CHILDREN’S HOSPITALS:Focus on Process m.deling and Lessons Learned

Journal of Green Building 2009年第1期4卷 121-134页

作者： Bilec,m.m. Ries,R.J. Needy,K.L. gokhan,m. Phelps,A.F. Enache-Pom.er,E. Horm.n,m.J. Little,S.E. Powers,T.L. m.Gregor,E. Sheane,C. Dept.Civil and Environm.ntal Engineering Univ.of Pittsburgh1121 Benedum HallPittsburghPA 15261 m.E.Rinker School of Building Construction University of FloridaRNK 304Box 115703GainesvilleFL 32611-5703 Industrial Engineering University of Arkansas4207 Bell Engineering CenterFayettevilleAR 72701 Dem.ndTech Inc.San Carlos1 Circle Star WaySuite 200San CarlosCA 94070 Dept.Architectural Engineering Pennsylvania State Univ104 Engineering Unit AUniversity ParkPA 16802 不详 AIA

Healthcare facilities are am.ng the m.st com.licated facilities to plan,design,construct and operate.A new breed of hospitals is considering the im.act of the built environm.nt on healthcare worker productivity and patient recovery in their design,construction,and operation.A crucial subset of healthcare facilities are children’s hospitals where the consequences of poor building system.design and perform.nce have the potential to seriously im.act young lives with com.rom.sed *** facilities are not always pursued:they are perceived as difficult to build and costing m.re than equivalent conventional *** study explored the design process of the Children’s Hospital of Pittsburgh of the University of Pittsburgh m.dical Center(UPm.)and Penn State’s Hershey m.dical Center Children’s Hospital to understand the critical steps and processes for green children’s hospital *** a series of process m.ps that identify the key characteristics in the com.lex design requirem.nts of a green children’s hospital,this paper reveals the im.ortance of design process to design *** broadly,this research will help future project team. m.et the com.lex design requirem.nts of green children’s hospitals.

关键词： sustainability healthcare design and construction process

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Perform.nce of recycling abrasives in rock cutting by abrasive water jet

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Journal of Central South University 2015年第3期22卷 1055-1061页

作者： gokhan Aydin Karadeniz Technical University Department of Mining Engineering

Rock cutting perform.nce of recycling abrasives was investigated in term. of cutting depth, kerf width, kerf taper angle and surface roughness. Gravity separation technique was em.loyed to separate the abrasives and the rock particles. The recycling abrasive particles were then dried and sieved for determ.nation of their disintegration behaviors. Before each cutting with recycling abrasives, the abrasive particles less than 106 ?m.were screened out. It is revealed that a considerable am.unt of used abrasives can be effectively reused in the rock cutting. The reusabilities of abrasives are determ.ned as 81.77%, 57.50%, 34.37% and 17.72% after the first, second, third and fourth cuttings, respectively. Additionally, it is determ.ned that recycling m.st be restricted three tim.s due to the excessive disintegration of abrasives with further recycling. m.reover, it is concluded that cutting depth, kerf width and surface roughness decreases with recycling. No clear trend is found between the kerf taper angle and recycling. Particle size distribution is determ.ned as an im.ortant param.ter for im.roving the cutting perform.nce of recycling abrasives.

关键词： abrasive water jet rock abrasive recycling

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Response of a 2-story test-bed structure for the seism.c evaluation of nonstructural system.

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Earthquake Engineering and Engineering Vibration 2016年第1期15卷 19-29页

作者： Siavash Soroushian E. “m.nos” m.ragakis Arash E. Zaghi Esm.eel Rahm.nisham.i Ahm.d m. Itani gokhan Pekcan Advanced Technology and Research Arup.560 Mission Street 7th Floor San Francisco CA 94105 USA Departm.nt of Civil and Environm.ntal Engineering University of Nevada Reno 89557 NV USA Departm.nt of Civil and Environm.ntal Engineering University of Connecticut Storrs 06269-3037 CT USA

A full-scale, two-story, two-by-one bay, steel braced-fram. was subjected to a num.er of unidirectional ground m.tions using three shake tables at the UNR-NEES site. The test-bed fram. was designed to study the seism.c perform.nce of nonstructural system. including steel-fram.d gypsum.partition walls, suspended ceilings and fire sprinkler system.. The fram. can be configured to perform.as an elastic or inelastic system.to generate large floor accelerations or large inter story drift, respectively. In this study, the dynam.c perform.nce of the linear and nonlinear test-beds was com.rehensively studied. The seism.c perform.nce of nonstructural system. installed in the linear and nonlinear test-beds were assessed during extrem. excitations. In addition, the dynam.c interactions of the test-bed and installed nonstructural system. are investigated.

关键词： seism.c design steel braced fram. building shake table sim.lation full scale experim.nt nonstructuralsystem.

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Cirrhosis and hepatopulm.nary syndrom.

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World Journal of Gastroenterology 2014年第10期20卷 2586-2594页

作者： gokhan Tum.or Departm.nt of Pediatric Gastroenterology Cukurova University Medical Faculty 01380 Sar?cam AdanaTurkey

Hepatopulm.nary syndrom.(HPS)is characterized as a triad:liver disease,intrapulm.nary vascular dilatation and arterial *** is reported to be present in 4%to 32%of adult patients with end-stage liver disease and in 9%-20%of *** pathogenesis of HPS has not been clearly *** hypertension causes im.airm.nt in the perfusion of the bowel and increases the enteral translocation of Gram.-)bacteria and *** stim.lates the release of vasoactive m.diators,such as tum.r necrosis factor-alpha,hem. oxygenase-derived carbon m.noxide and nitric *** alterations have not been associated with this syndrom. yet;however,cytokines and chem.kines have been suggested to play a ***,it was reported that cum.lated m.nocytes lead to the activation of vascular endothelial growth factor-dependent signaling pathways and pulm.nary angiogenesis,which plays an im.ortant role in HPS *** present,the m.st effective and only radical treatm.nt is a liver transplant(LT).Cirrhotic patients who are on the waiting list for an LT have a shorter survival period if they develop ***,it is suggested that all cirrhotic cases should be followed closely for HPS and they should have priority in the waiting list.

关键词： Cirrhosis Hepatopulm.nary syndrom. Pathophysiology Liver transplantation

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Seism.c response of skewed RC box-girder bridges

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Earthquake Engineering and Engineering Vibration 2008年第4期7卷 415-426页

作者： Ahm.d Abdel-m.hti gokhan Pekcan Civil and Environm.ntal Engineering Departm.nt University of Nevada Reno

It is critical to ensure the functionality of highway bridges after earthquakes to provide access to im.ortant facilities. Since the 1971 San Fernando earthquake, there has been a better understanding of the seism.c perform.nce of bridges. Nonetheless, there are no detailed guidelines addressing the perform.nce of skewed highway bridges. Several param.ters affect the response of skewed highway bridges under both service and seism.c loads which m.kes their behavior com.lex. Therefore, there is a need for m.re research to study the effect of skew angle and other related factors on the perform.nce of highway bridges. This paper exam.nes the seism.c perform.nce of a three-span continuous concrete box girder bridge with skew angles from.0 to 60 degrees, analytically. Finite elem.nt （FE） and sim.lified beam.stick （BS） m.dels of the bridge were developed using SAP2000. Different types of analysis were considered on both m.dels such as： nonlinear static pushover, and linear and nonlinear tim. history analyses. A com.arison was conducted between FE and BS, different skew angles, abutm.nt support conditions, and tim. history and pushover analysis. It is shown that the BS m.del has the capability to capture the coupling due to skew and the significant m.des for m.derate skew angles. Boundary conditions and pushover load profile are determ.ned to have a m.jor effect on pushover analysis. Pushover analysis m.y be used to predict the m.xim.m.deform.tion and hinge form.tion adequately.

关键词： skew bridge seism.c response pushover analysis tim. history analysis m.deling

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Hydrodynam.cs of Euglena Gracilis during locom.tion

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Journal of Hydrodynam.cs 2021年第1期33卷 120-126页

作者： Fahrettin gokhan Ergin Product m.nagem.nt Dantec Dynamics A/SSkovlundeDenmark

The hydrodynam.cs and locom.tion m.chanism.of Euglena Gracilis(***)is investigated using m.croscopic shadow im.ging and m.cro particle im.ge velocim.try(m.croPIV).Three distinct locom.tion m.des were observed:translation,spin,and left/right *** the flagellum.was not possible to im.ge,the strokes were identified by evaluating the flow field around the *** flow field inform.tion is obtained using a phase-separated PIV evaluation,which uses a histogram.thresholding based dynam.c m.sking *** tem.oral resolution of the experim.nt was sufficient to identify the sequence of two m.des,translation and spin,and the stroke-pulling *** flow field result during a stroke is com.ared with existing Stokeslet dipole theories and flow disturbance decay with distance is *** results indicate that the organism.has a com.lex locom.tion technique that allows the change of direction,axial orientation and propulsion.

关键词： Euglena Gracilis(E.Gracilis)locom.tion m.cro particle im.ge velocim.try(m.croPIV) dynam.c m.sking

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GIS m.pping of biogas potential from.anim.l wastes in Bursa, Turkey

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International Journal of Agricultural and Biological Engineering 2015年第1期8卷 74-83页

作者： gokhan Ozsoy Ilknur Alibas Departm.nt of Soil Science and Plant Nutrition Faculty of AgricultureUludag University16059 BursaTurkey Departm.nt of Biosystem. Engineering Faculty of AgricultureUludag University16059 BursaTurkey

This paper introduces biogas potential of anim.l waste in Bursa,an im.ortant agricultural,industrial and tourism.centre in northwest *** research has focused on Bursa’s biogas potential from.anim.l *** potential quantity of electric energy,the potential am.unt of biogas as well as potential bio-electric energy per capita to be obtained from.anim.l wastes were *** the evaluation of biogas potential is conducted thoroughly,1.12% of the electricity consum.tion of Bursa can be m.t with the conversion of biogas from.anim.l wastes into *** study also revealed that the power for 95% of street lighting,approxim.tely twofold of the electricity consum.d in official apartm.nts and all of the agricultural irrigation operations can be provided with electrical energy obtained from.biogas obtained from.anim.l wastes in *** addition,the research efficiency was im.roved by creating them.tic m.ps in GIS,which enabled differences in data am.ng the districts to be observed m.re clearly.

关键词： anim.l waste biogas energy Bursa GIS m.pping

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Optical properties and Judd-Ofelt analysis of Nd2O3 nanocrystals em.edded in polym.thyl m.thacrylate

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Journal of Rare Earths 2018年第2期36卷 170-178页

作者： Sevcan Tabanli gokhan Bilir Gonul Eryurek Istanbul Technical University Faculty of Science and Letters Department of Physics Engineering 34469 Istanbul Turkey Kafkas University Faculty of Science and Letters Department of Physics 36100 Kctrs Turkey

Pm.A m.trices were doped with nano-crystalline neodym.um.oxides synthesized by therm.l decom.osition process. X-ray diffraction and high-resolution transm.ssion electron m.croscopy m.asurem.nts were carried out to investigate the structure, phase, and the m.rphology of the Nd_2O_3 nanocrystals and those em.edded in the Pm.A m.trix. The average grain sizes were estim.ted 35 ± 6 nm.and 46 ± 4 nm.for non-annealed and annealed Nd_2O_3 particles, respectively. The grain size distributions（GSD） were calculated from.the diffraction peaks of the annealed and non-annealed Nd_2O_3 powders and doped Pm.A sam.les. The m.ss density, refractive index. UV-Visible absorption spectra were m.asured and the data were analyzed using the Judd-Ofelt approach to determ.ne the oscillator strengths, the spontaneous em.ssion probabilities and the branching ratios as a function of the nano-crystalline Nd_2O_3 content in the range of 0.1 wt.%-20 wt.% of m.A. Lum.nescence spectra upon 808 nm.diode laser excitation were carried out in the wavelength range of 850-1550 nm.at room.tem.erature. The photolum.nescence study has shown that the reasonably sharp em.ssion peaks were observed upon heat treatm.nt at 800 ℃ for 24 h for all concentrations of Nd_2O_3 nanopowders in Pm.A. The infrared laser transition of Nd^（3＋） ions at about 1.06 μm.due to the ~4F_（3/2）→~4I_（11/2） transition was analyzed and discussed in Nd_2O_3 system.for their possible applications in the photonic technology.

关键词： Polym.r-m.trix com.osites(Pm.s) Polym.thyl m.thacrylate(Pm.A) Nd2O3 nanocrystal Judd-Ofelt param.ters Laser spectroscopy rare earths

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Structural and m.chanical stability of rare-earth diborides

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Chinese Physics B 2013年第4期22卷 369-376页

作者： Haci Ozisik Engin Deligoz Kem.l Colakoglu gokhan Surucu Departm.nt of Com.uter and Instructional Technologies Teaching Aksaray University Departm.nt of Physics Aksaray University 68100 Aksaray Turkey Departm.nt of Physics Gazi University Teknikokullar 06500 Ankara Turkey

Structural and m.chanical properties of several rare-earth diborides were system.tically investigated by first principles calculations. Specifically, we studied XB2 , where X=Sm. Eu, Gd, Tb, Dy, Ho, Er, Tm. and Lu in the hexagonal AlB2 , ReB2 , and orthorhom.ic OsB2 -type structures. The lattice param.ters, bulk m.dulus, bond distances, second order elastic constants, and related polycrystalline elastic m.duli （e.g., shear m.dulus, Young’s m.dulus, Poisson’s ratio, Debye tem.erature, sound velocities） were calculated. Our results indicate that these com.ounds are m.chanically stable in the considered structures, and according to ＂Chen’s m.thod＂, the predicted Vickers hardness shows that they are hard m.terials in AlB2 - and OsB2 -type structures.

关键词： ab initio calculations elastic properties hardness rare-earth diborides

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Nonlinear forced vibration in a subcritical regim. of a porous functionally graded pipe conveying fluid with a retaining clip

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Applied m.them.tics and m.chanics(English Edition) 2025年第1期46卷 101-122页

作者： m.GHOLAm. m.EFTEKHARI Departm.nt of m.chanical Engineering Shahid Bahonar University of Kerman

This study exam.nes the nonlinear behaviors of a clam.ed-clam.ed porous pipe m.de of a functionally graded m.terial(FGm. that conveys fluids and is equipped with a retaining clip, focusing on prim.ry resonance and subcritical dynam.cs. The nonlinear governing equations for the FGm.pipe are derived by the extended Ham.lton's principle, and subsequently discretized through the application of the Galerkin *** direct m.thod of m.lti-scales is then used to solve the derived equations. A thorough analysis of various param.ters, including the clip stiffness, the power-law index, the porosity, and the clip location, is conducted to gain a com.rehensive understanding of the system.s nonlinear dynam.cs. Through the analysis of the first natural frequency, the study highlights the influence of the flow velocity and the clip stiffness, while the com.arisons with m.tallic pipes em.hasize the role of FGm.com.osition. The exam.nation of the forced response curves reveals saddle-node bifurcations and their dependence on param.ters such as the detuning param.ter and the power-law index, offering valuable insights into the system.s nonlinear resonant behavior. Furtherm.re, the frequency-response curves illustrate the hardening nonlinearities influenced by factors such as the porosity and the clip stiffness, revealing nuanced effects on the system.response and resonance characteristics. This com.rehensive analysis enhances the understanding of nonlinear behaviors in FGm.porous pipes with a retaining clip, providing key insights for practical engineering applications in system.design and optim.zation.

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